CN101806563B

CN101806563B - Safety initiating explosive device

Info

Publication number: CN101806563B
Application number: CN2010101206338A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-10
Filing date: 2010-03-10
Publication date: 2013-06-26
Anticipated expiration: 2030-03-10
Also published as: CN101806563A

Abstract

The invention discloses a safety imitating explosive device with a safety and arming device for initiating explosive, belonging to the technical field of safety of civil shotfiring safety aspect and submunition warhead shots in the war industry and solving the problem of safety of using an exploder. A space filled with air is arranged between an exploder and explosive for isolating explosion, which eliminates the damage generated by accidental explosion of the exploder. Only under the condition of the action of two environmental forces, the exploder is armed for explosion initiation. In the civil shortfiring, the explosive is prevented from being initiated under the accidental action during the initiating of the explosive, or the human is avoided being hurt by fragments generated by accidental explosion of the exploder, and the safety storage and transportation of the exploder is ensured. In the war products, the safety initiating device is used for ensuring the safety under conditions of servicing treatment and emission (overload of below 50000g and rotating speed of below 28000r/s) process, muzzle safety distance, impaction vibration and the like of the submunition warhead shots, and meets the relevant requirements on GJB373A-1997.

Description

Safety initiating explosive device

Technical field:

The present invention relates to a kind of priming device with safety insurance mechanism, belong to the security technique field of primary-secondary type in civil blast secure context and military industry warhead bullet.

Background technology:

At present, known detonator is before detonating charge, and detonator and explosive need reliably be kept apart, and prevents detonator accidental action ignition charge; Simultaneously the various detonators of detonating charge are considered to be non-persistently, run into static, be heated, the factor such as impact endurance test shock, and the possibility of unexpected blast is arranged, in case detonator accidental action ignition charge, consequence is hardly imaginable; In civil blast, detonating charge there is no the priming device with safety insurance mechanism; In military industry, detonator on fuse separates with the explosive staggered positions, need complicated harsh outside two environmental forces can make detonator be in the position of detonating charge, its complex structure, production technology is poor, cost is high, is not suitable for civil blast and primary-secondary type warhead bullet.

Summary of the invention:

For overcoming above-mentioned deficiency, the object of the present invention is to provide a kind of detonating charge device with safety insurance mechanism, in the safety when guaranteeing civil blast before detonating charge and military industry storage, transportation, the duties of primary-secondary type warhead bullet process, the safety during emission; In the device of invention, detonator is fixed on safe position reliably, and between detonator and explosive, to be full of the spaced apart of air, the space is comprised of detonation wave damping chamber and detonation wave expansion chamber, plays the flame proof effect; If detonator is at the position of safety accidental explosion, the detonation wave that produces is propagated in the air dielectric in space, the peak overpressure of detonation wave through the detonation wave damping chamber time by sharp-decay, again after detonation wave expansion chamber explosive decompression, its peak overpressure is much smaller than the critical pressure value of explosive initiation, thus reach can't detonating charge purpose; Output at this device arranges flame proof steel plate (slidably) shutoff passage simultaneously, and blocking-up detonator or detonation wave outgoing route play the effect of redundancy flame proof.

The structure technology scheme of taking is comprised of: tubular shell, plug, gas generating agent, atretic body, carrier, a plurality of locking pin, spring A, body, a plurality of screw, flame proof plate, safety plug, spring B, pallet, voussoir, detonation wave damping chamber, detonation wave expansion chamber, detonator (flame delay detonator or trigger detonator or electric cap etc.);

Detonator is fixed on the technical scheme at home place: after detonator and carrier thread connection, by step outstanding on carrier be stuck in the tubular shell endoporus, carrier and tubular shell endoporus interference fit, check screw be by the locking carrier of the screw on tubular shell (clamp-oning in right amount the outer wall of carrier) realization.

Realize safety of sympathetic initiation technical scheme: be detonation wave damping chamber (the endoporus space of tubular shell) and detonation wave expansion chamber (the endoporus space of body) if detonator at the home accidental explosion, plays the safety of sympathetic initiation effect; The redundancy flame proof is that the output at this device arranges flame proof steel plate (slidably) and stops detonator or detonation wave output; In addition, the structure with unidirectional locking gas prevents that detonator from causing the gas generating agent burning at the home accidental explosion.

The technical scheme that realization is detonated: high temperature, the gases at high pressure thrust that gas generating agent produces in narrow and small volume (being made of tubular shell, plug, carrier) internal combustion overcome shearing force, carrier and the tubular shell endoporus interference fit of the outstanding step of excision vector frictional force, check screw cutting carrier outer wall the cutting force three with joint efforts, make detonator leave home, and high speed slips over detonation wave damping chamber and detonation wave expansion chamber, until be deep into explosive inside, implement to detonate.

Make in design fixing detonator make a concerted effort much larger than pellet injection the time straight line overload power, guarantee that detonator is in home, and the thrust that gas generating agent produces guaranteed that detonator leaves home, and high speed slips over detonation wave damping chamber and detonation wave expansion chamber much larger than fixing making a concerted effort of detonator.

When civil blast uses this device, only after manually sliping off the flame proof plate, then possess simultaneously from these two conditions of input input flare up fire, can implement detonating charge; The course of work is: after the gas generating agent in device is lighted, in less space internal combustion, the high temperature that produces, gases at high pressure promote carrying the carrier movement of detonator, removing the security insurance of detonator fixes, and make detonator slip at a high speed detonation wave damping chamber and detonation wave expansion chamber, until detonator is deep into explosive inside, implement to detonate; Use this device on the bullet of primary-secondary type warhead, that straight line overload when utilizing pellet injection is sunk the safety plug on the flame proof plate, the locking of releasing to the flame proof plate, the flame proof plate is after sliping off under the centrifugal action that the bullet rotation produces, detonate with the flame startup execution that the ignition element of adapted on the bullet bullet is exported in good time, the course of work is the same; This device satisfies detonator needs to remove security insurance under two environmental forces requirement, can bear the following pellet injection overload of 50000g, the following bullet rotating speed of 28000r/min, can guarantee the safety in the situations such as bullet duties processing, emission process, gun muzzle safe distance, impact shock, satisfy the related request of GJB373A-1997.

Description of drawings:

Accompanying drawing is the safety initiating explosive device structure chart, see also accompanying drawing, formed by tubular shell (1), plug (2), gas generating agent (3), atretic body (4), carrier (5), locking pin (6), spring A (7), body (8), screw (9), flame proof plate (10), safety plug (11), spring B (12), pallet (13), detonation wave damping chamber (14), voussoir (15), detonation wave expansion chamber (16), detonator (17);

The connecting mode of each part is: after placing successively atretic body (4), spring A (7) in carrier (5) endoporus, detonator (17) and carrier (5) are fixedly connected, be contained in the epicoele of tubular shell (1) endoporus, under its endoporus, cavity space is detonation wave damping chamber (14); Plug (2) and tubular shell (1) thread connection, and together consist of with carrier (5) cavity volume of placing gas generating agent (3); Body (8) and tubular shell (1) thread connection; Pallet (13) is fixed on body (8) endoporus cavity of resorption with a plurality of screws (9), and on its endoporus, cavity space is detonation wave expansion chamber (16); Flame proof plate (10) is arranged in the gathering sill of pallet (13), and the drag of spring B (12) is stretched out safety plug (11), locking flame proof plate (10); Voussoir (15) is contained in tubular shell (1) side opening.

The specific embodiment:

detonator (17) is fixed on the embodiment at home place: after detonator (17) and carrier (5) are fixedly connected, again carrier (5) is fixed in the endoporus of tubular shell (1), make immobilization carrier (5) make a concerted effort much larger than pellet injection the time straight line overload power (below 50000g), guarantee that detonator (17) is in the position of security insurance, with three kinds of forms while immobilization carriers (5), that is: the outstanding step of carrier (5) is stuck in the upper surface of tubular shell (1) endoporus, carrier (5) outer wall is clamp-oned with the suitable degree of depth in a plurality of lock screw (6) tip [by the screw on tubular shell (1)], carrier (5) and tubular shell (1) endoporus interference fit.

realize the embodiment of safety of sympathetic initiation: tubular shell (1) connects with body (8), detonation wave damping chamber (14) communicates with detonation wave expansion chamber (16), and be arranged between detonator (17) and explosive, play the safety of sympathetic initiation effect, if that is: detonator (17) is at the position of safety accidental explosion, the detonation wave that produces is propagated in the air dielectric in space, the peak overpressure of detonation wave through the detonation wave damping chamber when (14) by sharp-decay, again after detonation wave expansion chamber (16) explosive decompression, the peak overpressure of its output is much smaller than the critical pressure value of explosive initiation, thereby reach can't detonating charge purpose, the redundant safety flame proof is that slidably flame proof steel plate (10) prevention detonator or detonation wave output are set in the gathering sill of pallet (13),

the embodiment that realization is detonated: sliping off under flame proof plate and these two conditions of input flare up fire, gas generating agent (3) at narrow and small volume [by tubular shell (1), plug (2), carrier (5) consists of] high temperature that produces of internal combustion, the step that gases at high pressure thrust excision vector (5) is outstanding, overcome simultaneously the frictional force of carrier (5) and tubular shell (1) endoporus interference fit, the cutting force of a plurality of locking pins (6) cutting carrier (5) outer wall, make detonator (17) leave home, and high speed slips over detonation wave damping chamber (14) and detonation wave expansion chamber (16), until be deep into explosive inside, enforcement is detonated.When this installs as adapted flame delay detonator or electric cap, the reverse frustoconic outlet is set on pallet (13), plays the fixedly effect of detonator of seizure; Trigger detonator as adapted, pallet arranges round exit on (13), and detonator is passed through smoothly, guarantees trigger action.

Claims

1. priming device with safety insurance mechanism, safety for Reliable guarantee explosive in detonator (17) accidental explosion situation, this priming device possesses following setting: detonator (17) is fixed on the home place, and keep apart with the space that is full of air between explosive, if detonator (17) accidental explosion, the detonation wave that produces transmits in the air dielectric of insulating space, the intensity of detonation wave along with the increase of the increase of transmitting distance and expansion space sharp-decay to the critical pressure much smaller than explosive initiation, reach can not detonating charge purpose, for realizing detonating, this priming device has gas generating agent (3), gas generating agent (3) is in narrow and small volume internal combustion, high temperature, the gases at high pressure thrust that produces can overcome fixedly making a concerted effort of detonator (17), make detonator (17) leave home, and at a high speed slip over the space that is full of air, until be deep into explosive inside, implement to detonate, for realizing that detonator (17) is fixed on the home place, this priming device is being characterized as of detonator (17) fixedly: after detonator (17) is coupled as one with carrier (5), be assembled in tubular shell (1) endoporus, the step that carrier (5) is upward given prominence to is stuck in the upper surface of tubular shell (1) endoporus, carrier (5) outer wall, carrier (5) and tubular shell (1) endoporus interference fit are clamp-oned by the screw on tubular shell (1) in the tip of a plurality of locking pin (6).

2. priming device as claimed in claim 1, be safety of sympathetic initiation, is provided with detonation wave damping chamber (14) and detonation wave expansion chamber (16) in this priming device, is the space that is full of air; Redundancy flame proof in this priming device is to be provided with slidably flame proof plate (10) in the gathering sill of pallet (13), stops detonator (17) to pass through or detonation wave output.